Hardware
Imagine a movie about a rogue employee who breaches security in a company that implants chips inside half of the world's computers. They embed a Trojan in systems around the globe and hold the world to ransom.
Apr 3, 2023
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Hi Tech & Innovation
(Tech Xplore)—China has a magnetic levitating train on its mind with amazing numbers. It is, yes, no keyboard error, 373 mph, meant as a commercial rail system.
Engineering
Magnetic random-access memories (MRAMs) are data storage devices that store digital data within nanomagnets, representing it in binary code (i.e., as "0" or "1"). The magnetization of nanomagnets inside these memory devices ...
Machine learning & AI
Scientists from South Ural State University, in collaboration with foreign colleagues, have proposed a new model for the classification of MRI images based on a deep-belief network that will help to detect malignant brain ...
Jul 24, 2020
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118
Engineering
A curious thing happened when MIT researchers Adam Vernon and Ronald Garcia Ruiz, along an international team of scientists, recently performed an experiment in which a sensitive laser spectroscopy technique was used to measure ...
Jul 15, 2022
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41
Engineering
A new kind of MRI component in the shape of a glove delivers the first clear images of bones, tendons and ligaments moving together, a new study finds.
May 8, 2018
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494
Robotics
In recent years, materials scientists and engineers have introduced increasingly sophisticated materials for robotic and prosthetic applications. This includes a wide range of electronic skins, or e-skins, designed to sense ...
Electronics & Semiconductors
Waves, whether they are light waves, sound waves, or any other kind, travel in the same manner in forward and reverse directions—this is known as the principle of reciprocity. If we could route waves in one direction only—breaking ...
May 21, 2020
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140
Robotics
Engineers and scientists have developed proof of concept for a robot that can reach some of the smallest bronchial tubes in the lungs to take tissue samples or deliver cancer therapy.
Mar 21, 2022
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213
Energy & Green Tech
To meet rising energy demands and power the countless electronic devices on the market, researchers will need to develop new advanced battery technologies. These technologies should ideally have higher energy densities and ...
In physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.
Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.
This text uses material from Wikipedia, licensed under CC BY-SA
